Apparatus for purifying water.



(Application med Oct. 13, 1900.)

(lo Modal.)

pil

ill li Inma/nia?" f 67x55 Z 'izmco, WW E UNITED STATES PATENT Ormes.

CASS L. KENNICOTT, OF CHICAGO, ILLINOIS.

APPARATUS FOR PURIFYING WATER.

SPECIFICATION formingpart of Letters Patent N o. 665,606, dated January 8, 190i.

Application filed October 13, 1900. Serial No. 32,929. (No model.)

T0 a/ZZ whom t nung/concern- Be it known that I, CASS L. KENNIooTT, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and usefulImprovement in Apparatus for Purifying Wat-er, of which the following is a specification.

My invention relates particularly to waterpurifying apparatus ot' the character described in Patent No. 646,108, granted to me March 27, 1900. In such apparatus there are commonly employed a hard-water tank, a precipitating-tank, and a tank or tanks containing a precipitating agent or agents, a mixing-chamber being commonly provided to receive the hard water and precipitating agents in proper quantities prior to the passage of the mixture into a suitable precipitating-conduit.

My primary object is to provide means whereby the quantity or quantities of chemical agent or agents admitted to the mixture may be automatically varied to correspond accurately with a change in the quantity of water admitted.

My invention is illustrated in its preferred form in the accompanying drawings, in which- Figure 1 represents in vertical section the upper portion of purifying apparatus constructed in accordance with my improvements, and Fig. 2 a detail of a joint for a swinging pipe-section employed. V

A represents a precipitating-tank having a downtake-cond uit A; A2, a mixing-chamber surmounting said conduit; B, a chemicalagent (preferably solution of soda) tank; B, a source of supply for the tank B; B2, a supply-pipe leading from the tank B to the tank.

B; B3, a iioat acting on a valve a, of the pipe B2 and controlling the depth of solution in the tank B; B4, a pipe leading to the tank A2; B5, a swinging pipe-section jointed to the pipe B4 inside the tank B; C, a motor-chamber; C', a water-wheel therein; C2, a hard-Water tank provided with a discharge-spout a; C2, a float movable on guides ce2; D, a soft-water tank provided with an overfiow-pipe b, leading to the tank A; D', a supply-pipe for the tank D, communicating with the tank A; D2, a pump geared to the water-wheel C; D3, a discharge-pipe for the tank D; D4, a swinging pipe-section through which water is admitted to the pipe D3; E, a chemical-solution (solution of lime) tank supplied with water from the tank D; E', a chamber for a chemical, (lime,) said chamber having a perforated walld; E2, power-transmission means for connecting a stirrer (not shown) for the tank E with the water-wheel C', and E8 an overflowpipe for the tank E, which is also a supplypipe for the chamber A2.

A detail of the connection between the pipe B4 and its movable inlet-section is shown in Fig. 2, a short pipe-section f, perpendicular to the section B5, being interposed for the section B5 to swing about. The detail at the pipes D3 D2 is similar. The pipes D4 B5 are provided with inlet-orifices g g', respectively, the sizes of which are regulated by adjustable collars g2. Flexible connections h h', passing over suitable pulleys h2 h5, so join the pipe-sections DLl B5 to the float C3 that when the float falls the pipe-sections are raised.

It should now be understood that the depth of the orifices g 'g' below the surfaces of the liquids in the tanks B and D will Vary directly with the depth of water in the tank C2. By making. the pipes receiving liquid from said orifices of sufficient cross-section to prevent them from becoming filled the columns of liquid above the orifices become the heads of pressure, tending to force liquid from the tanks. Thus it appears that yit is possible to automatically secure exactly the same heads of pressure at the discharge-orifices of the tanks B and D as there is at the dischargeorice of the tank C2.

In operation Water to be purified is contained in varying depth in the tank C2. A solution of soda, for instance, of constant depth is maintained in the tank B through the agency of the float-actuated valve a, and water is supplied to the tank D by the pump D2 in ample quantity to keep said tank filled to the overflow. Water from the tank C2 actuates the Water-wheel in passing to the chamber A2. Lime in lump form is placed in the chamber' E. The heads of pressure upon the orifices g and g are regulated by the tloat C3 by raising or lowering said orifices, according to the fall or rise of the iioat. Thus the ratio between the quantities of liquid supplied to the chamber or pan A2 from its three sources IOO remains a constant despite a variation in the total quantity supplied. This evidently is the case, since the liquid passing through the pipe E3 must equal the liquid passing through the pipe D3. The stirring mechanism operated by the transmission means E2 for causing the lime to dissolve more quickly is the same as that illustrated in my former patent. The purified water leaves the tank A at the pipe k.

It is obvious that my invention may be embodied iu other forms than the one shown. Hence I desire to be understood as intending no limitations by the foregoing detailed description.

The gist of my invention lies, generally stated, in float-actuated means for varyi ng the flow from one supply-source according to a variation in flow from another su ppl y-sou roe, and, more specilically stated, in means for varying the height of the discharge-orifice of one supply-tank according to a change in the liquid-level in another supply-tank.

What I claim as new, and desire to secure by Letters Patent, is

l. In apparatus of the character described, the combination with a mixing-chamber, a Water-supply tank having a discharge-orice communicating therewith, and a chemicalagent-supply tank having a discharge-orifice communicating with said chamber, of a iioat actuated with change of level in one of said supply-tanks, and iioat-actuated means controlled from said float and connected with the other supply-tank for causing a variation in the head of pressure acting upon the dis-v charge-orifice 0f said last-m entioned tank,su bstantially as and for the purpose set forth.

2. In water-purifying apparatus, the combination with a mixing-chamber, and a'plurality of supply-tanks, one of which has a fixed discharge-orifice, of a float in the tank having said fixed orifice, and a float-actuated member connected with said oat and carrying a discharge-orifice for another supplytank, through the medium of which the head of pressure in the last-named tank is caused to be automatically varied with a variation of the head in the controlling-tank, substantially as and for the purpose set forth.

3. In water-purifying apparatus, the combination with a mixing-chamber, and a plurality of supply-tanks communicating therewith, of a movable pipe-section in one tank provided with a discharge-orifice forsaid tank and serving to conduct the liquid from said oriice, a fioat in another of said tanks, and.

and serving to conduct the liquid from said orifice, and means forautomatically changing the position of said pi pe-section with relation to the level of the liquid wherein it' is immersed to cause a variation in the head of pressure when a variation in the amount of discharge from a controlling-tank occurs, substantially as and for the purpose set forth.

5. In water-purifying apparatus, the combination with a mixing-cham ber, a hard-water tank, and a chemical-agent tank, of a supply vessel for said last-named tank, a doat-controlled valve regulating the passage of liquid from said vessel, a movable member having a discharge-orifice for said last-named tank, a purewater tank, means forsupplying puritied water thereto and maintaining a given level therein, a movable member having a discharge-orifice for the pure-water tank, a float in said hard-water tank, regulating the position of said discharge-orifices, a tank for dissolving a second chemical, said dissolvingtank being supplied with water from said pure-water tank, and means of communication between saidV dissolving-tank and said mixing-chamber, substantially as and for the purpose set forth.

6. In water-purifying apparatus, thecombination of a mixing-chamber, a hard-water tank above the same and in communication therewith, a precipitating-tank, a pure-water chamber above the level thereof, means for elevating purified water from the upper portion of the precipitating-tank to said purewater tank and maintaining a given level in said last-named tank, a dissolving-tank, an overflow-pipe therefor which serves to conduct liquid to said mixing-chamber, a float actuated by change in level in said hardwater tank, Ya' discharge-orifice-bearing part regulated by said float, and a passage from said orifice to said dissolving-tank, substantially as and for the purpose set forth.

7. In water-purifying apparatus, the combination of a mixingtank, a' water-wheel chamber, a Water-wheel in said chamber, means of communication between said chamber and said mixing-tank, a hard-water tank above said water-wheel provided with a discharge-orice leading to said wheel, a ioat in said hard-Water tank, a precipitating-tank beneath said mixing-tank, a soft-water tank above said precipitating-tank, means actuated by said Water-wheel for delivering purified water from the upper portion of said precipitating-tank to said pure-water tank, an overliow for said pure-water tank, a dissolving-tank, a discharge-pipe leading from said pure-water tank to said dissolving-tank, a neat-actuated movable memberprovided with a discharge-orifice for said discharge-pipe,and an overflow-pipe for said dissolvingtank communicating with said mixing-tank, substantially as and for the purpose set forth.

8. In water-purifying apparatus, the combination of a precipitating-tank, a mixingtank surmounting the same, a chemical-so- IOO IIO

lution tank above said mixing-tank provided with a discharge-pipe leading to the mixingtank, a movable pipe-section for said ehemioal-solution tank,a Water-wheel chamber provided With a discharge leading to the mixingtank, a wheel therein, a hard-Water tank surmounting the Water-Wheel chamber' and provided With a discharge leading to the Wheel, a float in said haId-Watel1 tank, a soft-Water tank located above said precipitating-tank, mechanism geared t0 said Wheel for delivering purified Water from the upper portion of said precipitating-tank to said pure-water tank, an overflow for maintaining a given level in said pure-water tank, a dissolving- CASS L. KENNICOTT.

In presence of- D. W. LEE, ALBERT D. BACCI. 

